Expressions and correlations of TLR2 ,TLR4 ,TLR7 and TLR9 in eosinophil-enriched blood cells from patients with allergic rhinitis
10.7652/jdyxb201804018
- VernacularTitle:变应性鼻炎患者血液嗜酸性粒细胞富集群中TLR2、TLR4、TLR7和TLR9的变化及其相关性
- Author:
Xiao-Wen ZHANG
1
;
Hui-Yun ZHANG
;
Wei WANG
;
Meng-Meng ZHAN
;
Shao-Heng HE
Author Information
1. 锦州医科大学附属第一医院
- Keywords:
allergic rhinitis;
eosinophil;
TLR2;
TLR4;
TLR7;
TLR9
- From:
Journal of Xi'an Jiaotong University(Medical Sciences)
2018;39(4):537-541,572
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate expressions and correlations of TLR2,TLR4,TLR7 and TLR9 in eosinophil-enriched cell populations from patients with allergic rhinitis (AR),and elucidate their roles in AR. Methods Peripheral venous blood samples were collected from healthy controls (HCs)and AR patients,and then incubated with crude extracts of Artemisia pollen,dust mite,and Platanus pollen,respectively.Levels of TLR2 , TLR4,TLR7 and TLR9 in blood eosinophil-enriched cells were detected by flow cytometry.Correlations between TLR2+,TLR4+,TLR7+and TLR9+eosinophils were analyzed by SPSS.Results Levels of TLR2+eosinophils from patients with AR were reduced by 4%,mean fluorescence intensity (MFI)of TLR4+eosinophil was elevated by 20%,and TLR7+eosinophils increased up to 4.8 folds compared with HCs when cultured with medium only (P＜0.05).Artemisia pollen extracts induced approximately 7 .8 % of increase in TLR2+eosinophils from AR patients.In addition,correlations between TLR2+and TLR4+eosinophils,TLR2+and TLR7+eosinophils,and TLR7+and TLR9+eosinophils were -0.670 (P＜0.01),-0.430 (P＜0.05)and 0.446 (P＜0.05),respectively. However,allergens had few effects on TLR2,TLR4,TLR7 and TLR9 expressions in HCs.Conclusion Eosinophil-derived TLR2 ,TLR4 and TLR7 are likely to play a key role in AR.TLR2 ,TLR4 and TLR7 might become the potential targets for AR treatment.
